A324879 Numbers k such that A324863(k) is equal to A324874(k).

1, 9, 15, 16, 21, 27, 35, 39, 55, 57, 64, 75, 77, 85, 87, 90, 91, 95, 99, 105, 111, 115, 119, 125, 129, 133, 143, 147, 155, 159, 161, 175, 183, 185, 189, 195, 201, 203, 205, 209, 213, 221, 235, 237, 243, 245, 253, 256, 259, 265, 267, 275, 285, 287, 295, 299, 301, 303, 319, 321, 323, 325, 335, 339, 341, 351, 355, 363, 365

Offset

1,2

Comments

In range 1..10000, there are only three such numbers k for which A324868(k) == A000120(A324866(k)): 1, 9, 125. See A324201.

Links

Antti Karttunen, Table of n, a(n) for n = 1..2240 (based on Hans Havermann's factorization of A156552)

Index entries for sequences related to binary expansion of n

Index entries for sequences computed from indices in prime factorization

Index entries for sequences related to sigma(n)

Prog

(PARI) for(n=1, oo, if(A324863(n)==A324874(n), print1(n, ", ")));

Crossrefs

Cf. A000120, A324863, A324866, A324868, A324874.

Subsequences: A324201, A324880 (even terms).

Sequence in context: A257409 A105882 A136410 * A066942 A257048 A363896

Adjacent sequences: A324876 A324877 A324878 * A324880 A324881 A324882

Keyword

nonn

Author

Antti Karttunen, Mar 27 2019

Status

approved